Sprinkle the chicken breasts with salt, pepper, and oregano.
Heat the olive oil in a parge skillet over medium heat.
Place the chicken breasts in the pan and saute for 4-6 minutes on each side or until the chicken is cooked through. Remove from the pan and place on a plate.
In the same skillet add the garlic, wine, and chicken broth. Cook the liquid down until it has reduced by half, about 7 minutes.
Add in the sun-dried tomatoes and heat for 1-2 minutes.
Return chicken to the pan and cook for 1-2 minutes.
Remove from heat and add the chicken breast and then the feta cheese.